Socket for incandescent lamps.



No. 7I2,685. Patented Nov. 4, I902.

0. E. KENNEY.

'SDGKET FOR INCANDESCENT LAMPS.

(Application fild May 31', 1902.)

(No Model.)

UNTTED STATES PATENT OFFICE.

OWEN E. KENNEY, OF TOLEDO, OHIO, ASSIGNOR TO YOST-MILLER COM- PANY, OF TOLEDO, OHIO, A CORPORATION OF OIIIO.

SOCKET FOR INCANDESCENT LAMPS.

SPECIFIGATIC'N forming part of Letters Patent No. '71 2,685, dated November 4, 1902.

Application filed May 31, 1902. Serial No. 109,670 (No model.)

do (I/ZZ whom, it may concern Be it known that I, OWEN E. KENNEY, a citizen of the United States, residing at T0- ledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Sockets for Incandescent Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in the manner of con-- nectiug together the caps and shells of incandescent-lamp sockets.

In lamp-sockets as at present made and Where the cap and shell are connected through the medium of bayonet-slots in the shell and adjustable screws located in the shell and interior lugs such construction involves considerable cost of manufacture and requires manipulation and adjustment to prevent accidental separation after they have been properly connected.

My invention has for its object to simplify the construction of the means for securing the cap and shell in separable relation with one another and which shall be economic of construction, the portions of the locking devices connected, respectively, with the cap and shell being always in fixed and immovable relation with their respective parts and adapted to make ready connection with one another and not liable to accidental separation.

In order that those skilled in the art to which my invention appertains may know how to make and use my invention and fully appreciate its advantages, I will proceed to describe the same, referring by letters to the accompanying drawings, in which Figure 1 represents a side elevation of an incandescent lamp with a socket embracing the features of my invention. Fig. 2 is a cross-scetion on the line at so of Fig. 1. Fig. 3 is a perspective View of the socket-inclosing shell, and Fig. 4 is a similar view of the cap.

In the several figures of the drawings similar letters of reference designate like parts.

purpose to be presently explained.

lamp to its seat.

The shell Bis formed with two or more (preferably three) vertical slots or channels D, extending from its upper edge, and, as shown, at one side of each of the slots or channels D, and preferably to the left, is formed a radial slot or gate E, leaving a partition F integral with the body of the shell for the The cap 0 is formed with short radial studs G, projecting inwardly a sufficient distance to enter and lie within the slots or gates'E, and their cross-section is such that they may readily pass down vertically in the vertical slots or channels D as the cap B is being placed over the shell A. The studs G may be made separate from the cap B and secured in place in any suitable manner, or they may preferably be formed at the required localities by punching the metal of the cap inwardly by the use of suitable dies and, as shown at G, Fig. 4, in the manner well known to sheet-metal workers.

When the parts are constructed as described and it is desired to connect the cap and shell together, the cap is located with the radial studs Gin alincment with the vertical slots or channels D of the shell, and the cap is forced downwardly over the shell until it is arrested by the contact of the studs with the bottom of the slots D. The cap is then turned to the right, whereupon the studs ride upon the outer surface of the partitions 'or bridges F between the slots D and E. Said partitions or bridges by reason of the presence of the open top slots or channels D yield or spring inwardly to a suhicient extent to permit the studs G of the cap to ride freely over them and until they register with and enter the slots E, where they are held by the return of the bridges F to their normal positions, the relation'between the shell B, insulating-lining H, and blocks I being such as to allow this limited spring action of the partitions or bridges F.

If found desirable or necessary, the adjacent parallel edges of the slots D and E may be slightly rounded or beveled toward each other in any suitable manner to facilitate the starting movement in either direction of the radial studs G.

From the construction shown and described it will be seen that the studs G bear a fixed relation with the cap 0, and hence require no adjustment and unlike screws are not liable to become lost or to work out of adjustment. It will also be readily understood that the construction may be very expeditiously and economically made and that the manipulation in connecting or disconnecting the cap and shell is simple and readily understood and that the locking devices are exceedingly durable and efiective.

Many slight changes may be made in the dimensions or relations of the various coacting features of construction or in the outlines or designs thereof without departing from the spirit of my invention. For instance,

the slots or channels D need not be perfectly vertical in their trend, and the adjacent slots E may be on either one or the other'side of the slots or channels D, and they may be rectangular, as shown, or of any other design,

and likewise the cross-section design of the radial studs Gr may be such as preferred.

Having described my improvements, what I claim as new, and desire to secure by Letters Patent, is-

1. A case for incandescent-lamp sockets composed of a shell or body portion provided with vertical open slots or channels, and adjacent inclosed slots and a spring partition or bridge between said slots, and a cap provided with interiorly-projecting radial studs adapted to pass vertically and transversely in the respective slots of the body or shell, substantially as and for the purpose set forth.

2. In an incandescent-lamp socket, a casing composed of a sheet-metal shell provided with vertical slots or channels D, and adjacent slots E with a partition or bridge F between said slots or channels, and a cap with radial interior projections integral with the cap and adapted to move vertically through the slots orchannels D and transversely into the slots E, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

' OWEN E. KENNEY.

\Vitnesses:

JOSEPH L. Yos'r, ANNA M. YosT. 

